So you need a new roofing and are trying to determine whether to try and conserve some money by having the brand-new roof set up over an existing layer of roofing. This method is quite common in several areas and several roofing contractors donot see any type of issue with this approach and also have no problem attempting to market property owners on a lay-over or go-over as this technique is called. They are incorrect.There is a good chance that your old roof covering had some issue areas consisting of possible leak areas, whether you discovered them or otherwise. Without detaching the old roof and appropriately recognizing these types of difficulty areas and also figuring out where the leak was originating from and traveling to it is difficult to tell what locations of your roofing system may require some special interest.
There could be locations that have actually decomposed wood concealing under the roof repair Toronto. These decomposed locations require to be recognized and replaced prior to a brand-new roofing is installed. Obviously if your professional roofer is doing a lay-over roofing setup after that these rotted locations will stay covered and also worsen as the years go on. Also the nails holding down the roof shingles in areas with decomposed timber cannot properly do their job and also you have a much greater risk of shingles blowing off in those areas.This is a big one. The eaves, rakes and also valleys of your residence requirement special attention when your house’s roofing is being mounted. This is specifically crucial in chillier environments like Massachusetts, where we are located. In the wintertime time the eaves of your residence are under attack by Mother earth, whether it is with ice dams, snow build up, or simply the continuous cold and thawing that happens throughout the winter.
When a brand-new roof is effectively set up the roofing contractor needs to put brand-new light weight aluminum drip-edge around the entire border of your roof.Next they require to use a 3 foot wide area of ice & water barrier around the border in addition to in any type of valleys on your roofing. After that they can begin to install the new roofing. Without tearing off the initial roofing there is no way to effectively install the brand-new drip-edge or ice & water obstacle. On a lay-over kind of roofing mount, the roofing contractor is relying on the existing items on the home’s roofing system to still depend on the same level and have the ability to manage the winter months problems. All too often the old items fail whether it was due to the fact that they have outlived their life time, were crappy to begin with, or possibly they were never there to start with all to often the last is the case with ice & water barrier.